unit 7 vocab

2. a flat, two-dimensional model of a three-dimensional shape
5. a parallelogram with four right angles
8. a flat surface that is one side of a solid figure
11. the distance from one base of a quadrilateral to another, or the distance from the point of the triangle to the base, forming a right angle
12. _________ shape two or more combined figures that create a unified, single shape
13. a regular solid having six congruent square faces
18. a quadrilateral whose opposite sides are both parallel and equal in length
21. ______ units a unit, measuring 1 unit by 1 unit, that is used in measuring area
22. the number of square units needed to cover a flat (2D) surface
23. the point at which two edges, line segments, lines, or rays meet to form an angle

1. the amount of space inside a solid, 3-D figure
3. a three-sided polygon
4. to separate a shape into smaller shapes in order to find it's total area
6. _____ units the unit of measure for volume; 1 unit x 1 unit x 1 unit
7. ___________ prism a solid shape with two identical rectangle bases and all other faces are rectangles
9. _______ area the sum of the space covered by all the flat sides of a solid figure, measured in square units
10. a quadrilateral with exactly one pair of parallel sides
14. the side of a quadrilateral or triangle that is perpendicular to the height of the shape; in a trapezoid, the two parallel sides
15. __________ prism a solid shape with two identical triangle bases and all other faces are rectangles
16. a line segment created when two faces meet in a solid figure
17. a quadrilateral with 4 equal sides and 4 right angles
18. a solid shape with one polygon base and all other faces are triangles that come to a point
19. ______ units a unit of measurement of length, perimeter, and circumference (ex. inches, feet, yards)
20. the distance around the outside of a polygon or composite figure